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| Date: | Friday 15 January 1999 |
| Time: | 12:20 LT |
| Type: |  Douglas DC-9-15 |
| Owner/operator: | Midwest Express |
| Registration: | N300ME |
| MSN: | 45718/17 |
| Year of manufacture: | 1966 |
| Total airframe hrs: | 65241 hours |
| Engine model: | P&W JT8D-7B |
| Fatalities: | Fatalities: 0 / Occupants: 60 |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Category: | Accident |
| Location: | Plainfield, Pennsylvania -
 United States of America
|
| Phase: | En route |
| Nature: | Passenger - Scheduled |
| Departure airport: | Milwaukee Airport, WI (KMKE) |
| Philadelphia Airport, PA (PHL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The DC-9 departed and climbed to flight level 290. About 1 hour and 35 minutes after departure, the airplane was cleared by ATC to 17,000 feet msl. Upon receiving the clearance, the captain initiated approximately a 3,500 foot per minute descent, and slowed to 280 knots. While in the descent and passing flight level 235, the airplane encountered the wake turbulence of a cargo Boeing 747, which was 12 nautical miles ahead and also descending to 17,000 feet msl. The captain of the DC-9 pitched the airplane's nose up to exit the wake turbulence, and requested additional separation between the two airplanes from ATC. During the wake turbulence encounter, a flight attendant in the galley slipped, and seriously injured her right ankle.
Probable Cause: The wake turbulence from the proceeding Boeing 747.
Accident investigation:
 |
|
Sources:
NTSB NYC99LA050
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Mar-2024 15:22 | ASN Update Bot | Added |
| 03-Mar-2024 15:25 | ASN | Updated [Aircraft type, Cn, Location, Phase, Nature, Departure airport, Destination airport, Narrative, ] |
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